- Written by Gertrude Chandler Warner
- Narrated by Tim Gregory
- Audiobook
- ISBN: 9781621880479
- 2 hours 8 minutes
- 9–12 years old
- Included in All Memberships
Mountain Top Mystery
Oasis Audio ● The Boxcar Children Mysteries
The Aldens climb a mountain and find a mystery! The hike up Old Flat Top was only supposed to take a day, but a dangerous rockslide changes everything to reveal a hidden cave that just may hold a legendary treasure!
